Mitigation of wax levels in the high pressure low density polyethylene process
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United States of America Patent
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Jan 30, 2018
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app pub date -
May 19, 2015
filing date -
Jun 19, 2014
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Abstract
In the high pressure polymerization of ethylene homopolymers or copolymers, conditions in the high pressure recycle system may lead to the build-up of low molecular weight oligomers and waxes. Sequentially draining knock-out pots, located downstream of a high pressure separator, at regular intervals can reduce the build-up of low molecular weight oligomers and waxes during the high pressure polymerization of alpha olefins.
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